JP6026080B2 - Editing device - Google Patents

Description

  The present invention relates to an editing apparatus for graphically editing a configuration of audio signal processing executed by a signal processing unit.

  Conventionally, in a digital audio mixer (also referred to as “digital mixer” or “mixer”), various signal processing parameters such as audio signal routing, mixing processing, and effect processing can be set from a display screen. Known (see, for example, Patent Document 1 below).

  Further, in a conventional digital mixer, for example, a user can add functional elements (components) related to various signal processing such as an audio signal input / output module and various audio signal processing modules such as an equalizer and a compressor for each signal processing channel. There is known a mixer (programmable mixer) that can edit a signal processing configuration (mixing algorithm) executed by the mixer by arbitrarily combining the signals. As a software for editing the mixing algorithm, a component image indicating a desired functional element (component) is arranged on a computer screen, and an arbitrary supply is provided by a line segment connecting between connection points of the arranged component image. There was a route that logically connects an original and an arbitrary supply destination (see, for example, Non-Patent Document 1 below).

  In the technique described in Non-Patent Document 1, it is assumed that a component image placement operation or a connection operation between connection points of a component image is performed by a cursor operation using a pointing device such as a mouse operator. It was. That is, regarding the arrangement of component images, a desired component image is arranged at a desired position by a so-called drag and drop operation. For connection, after clicking any start point, move the pointer and click any end point, or by dragging from any start point to any end point, any start point and any A line segment connecting the end points of was drawn.

Japanese Patent Laid-Open No. 2002-374591

“DME Designer Version 3.5”, [online], Yamaha Corporation, 2004, [Search September 13, 2010], Internet <URL: http://www2.yamaha.co.jp/manual/pdf /pa/japan/signal/dmedesigner_ja_om_v351a.pdf>

  In the above-described conventional technology, it has been assumed that the connection points of the component image are connected exclusively using a mouse operation. Also, since the audio signal path is represented by a line segment that connects the connection points of two component images in a one-to-one relationship, for example, when a path connecting one supply source to a plurality of supply destinations is drawn. It was cumbersome to draw one line segment for each of multiple suppliers.

  The present invention has been made in view of the above points, and in an editing apparatus using a touch panel display capable of identifying multipoint contact, is intuitive and simple operation, is visually attractive, and is easy to understand for the user. An object of the present invention is to enable drawing of a route for transmitting an audio signal.

The present invention is an editing apparatus for editing the configuration of audio signal processing executed by a signal processing unit based on a touch operation on a touch panel display capable of identifying multipoint contact, and the display includes A plurality of component images corresponding to functional elements constituting the audio signal processing, and a first line segment indicating a path logically connecting an arbitrary supply source and an arbitrary supply destination among the plurality of component images are displayed. In the editing apparatus, when the touch operation on the first line segment displayed on the display is detected in a state where the touch operation on the display is not performed, the first touched operation is performed. When a new touch operation is detected in a state in which the touch point on the first line segment and the start point setting means for setting the start point on one line segment is continued, Such and end setting means for setting the end point based on the touch operation as a common path for transmitting an audio signal of the first line segment which the start point is set to any of a plurality of supply destinations, branching from the first line segment Bus line segment drawing means for drawing a bus line segment on the display; target bus setting means for setting the bus line segment as a target bus when a touch operation on the bus line segment is detected; and When a new touch operation on the connection point is detected, a path for transmitting the audio signal of the bus line set to the target bus to the touch-operated component image is used as a path from the bus line segment to the component image. An editing apparatus comprising: second line drawing means for drawing a second line extending to a connection point on the display.

According to the editing apparatus of the present invention, first, a touch operation is performed on the first line segment being displayed, a start point is set on the first line segment, and a new touch operation is performed while the touch operation is continued. By setting the end point, the bus line segment branched from the first line segment can be drawn on the display as a common path for transmitting the audio signal of the first line to any of a plurality of supply destinations. . Subsequently, when a touch operation is performed on the bus line segment, the bus line segment is set as the target bus, and then a new touch operation is performed on the connection point of the component image, the bus line segment set in the target bus is set. As a path for transmitting an audio signal to the newly touched component image, a second line segment extending from the bus line segment to the connection point of the component image can be drawn on the display.

  In the editing apparatus of the present invention, when the first line segment intersects the bus line segment drawn by the bus line segment drawing unit, the path indicated by the intersecting first line segment is defined as the bus line segment. Redrawing means for redrawing as a path indicated by a second line segment extending from the bus line segment to the connection point of the component image, and specifying a connection point between the two component images serving as both ends of the intersecting first line segment Redrawing means for drawing two second line segments extending from the bus line segments to the connection points of the specified component images on the display, and erasing the intersecting first line segments. Furthermore, it is characterized by comprising.

By the redrawing means, the path indicated by one first line segment intersecting the bus line segment can be expressed by the path indicated by the bus line segment and two second line segments extending from the bus line segment. Thus, for example, a plurality of first line segments connecting one component image of a supply source and a plurality of component images of a supply destination are converted into one second line extending from the bus line segment and the component image of the supply source to the bus line segment. And a plurality of second line segments extending from the bus line segment to a plurality of supply destination component images.

According to the present invention, an intuitive and simple operation is performed in which a touch operation is performed on the first line segment displayed on the display unit, and a new touch operation is performed while the touch operation on the first line segment is continued. in Do operation, it can be drawn bus line indicating a common path for transmitting the audio signal of the first line segment to an arbitrary plurality of supply destinations. Further, the after touch operation to the bus line, and intuitive and simple operation just touched the component images can be rendered a second line segment extending from the bus line to the connection point of the component images. Therefore, by performing an intuitive and simple multi-point touch operation, a path for distributing an audio signal to an arbitrary plurality of supply destinations is divided into a bus line branching from the first line segment and a second line segment extending from the bus line segment. It can be drawn by a combination of This makes it possible to draw a path of an audio signal that is visually appealing, simple, and easy to understand for the user, as compared to a connection method that uses a first line segment that connects connection points of two component images on a one-to-one basis.
Further, the redrawing means can redraw the path indicated by the first line segment intersecting the bus line segment into the path indicated by the bus line segment and the second line segment extending from the bus line segment to the connection point of the component image. A route expressed by a plurality of first line segments can be easily rewritten into a simple and visually beautiful route that is a combination of a bus line segment and a second line segment .

The block diagram explaining the hardware constitutions of the digital audio mixer which is one Example of this invention. The block diagram explaining the outline | summary of the mixing algorithm which the mixer of FIG. 1 performs. The figure explaining the edit window displayed on the display part of FIG. The figure explaining a mode that a bus line segment is drawn. The flowchart explaining the process which produces the bus line segment of FIG. The figure explaining a mode that the perpendicular line from the bus line segment of FIG. 4 to a terminal is drawn. The flowchart explaining the process which creates the perpendicular from a bus line segment to a terminal. The figure explaining the line segment which cross | intersects a bus line segment diagonally in an edit window. The flowchart explaining the process which redraws the line segment which cross | intersects a bus line segment diagonally. It is a figure explaining a mode that a line segment which diagonally crosses a bus line segment is drawn, (a) is a mode which detects a line segment which crosses diagonally, (b) is drawing a perpendicular to a bus line segment. A mode and (c) show a mode that an overlap line segment and an unnecessary line segment are arranged, respectively. The figure explaining the mode of drawing of the bus line segment concerning another embodiment. 12 is a flowchart for explaining processing for creating the bus line segment of FIG. 11. The figure explaining the mode of drawing of the bus line segment concerning another embodiment.

  Hereinafter, as an embodiment of the present invention, a digital audio mixer to which an editing apparatus according to the present invention is applied will be described with reference to the accompanying drawings. The digital audio mixer of the present embodiment assumes a mixer (programmable mixer) that can arbitrarily edit the configuration of the audio signal processing executed by the signal processing unit.

  In FIG. 1, a digital audio mixer 1 includes a CPU 10 (Central Processing Unit), a ROM (Read Only Memory) 11, a RAM 12 (Random Access Memory), a display interface 13 (display I). / F), operation detection interface 14 (detection I / F), communication interface 15 (communication I / F), signal processing unit 16 (DSP (Digital Signal Processing) unit), effect processing unit 17 (EFX), analog-digital conversion A unit 18 (AD conversion unit), a digital / analog conversion unit 19 (DA conversion unit), and a digital / digital conversion unit 20 (DD conversion unit) are included.

  The CPU 10, the flash memory 11, the RAM 12, the display I / F 13, the detection I / F 14, the communication I / F 15, the DSP unit 16, and the EFX 17 are connected via the communication bus 21, and various types are connected between the CPU 10 and each unit. Control signals can be communicated. Further, the DSP unit 16, the EFX 17, the AD conversion unit 18, the DA conversion unit 19, and the DD conversion unit 20 are connected via an audio bus 22, and can communicate digital audio signals between the units.

  The CPU 10 executes a program stored in the ROM 11 or RAM 12 to control the entire operation of the digital mixer 1. The ROM 11 is a nonvolatile memory that stores various programs executed by the CPU 10 and various data. The RAM 12 is a volatile memory used for a load area and a work area of a program executed by the CPU 10, and a current memory for storing current values (current data) of various parameters for controlling the operation of the mixer 1 is provided. .

  The touch panel display 2 is composed of a multi-touch input display (a touch panel display capable of identifying multipoint contact), and displays various information based on display control signals given from the CPU 10 via the communication bus 21. It is displayed by various images and character strings. The user performs a “touch operation” that touches any one or a plurality of points on the screen of the display device 2 using some contact means such as a finger or a pen-type input means called “stylus”. In this specification, the operation of inputting an instruction by touching the screen is referred to as “touch operation” or “touch”. The display 2 detects a touch operation on one or a plurality of points, and supplies a detection signal corresponding to the detected position or movement of the one or a plurality of points to the CPU 10 via the communication bus 21. The CPU 10 executes an operation based on the supplied detection signal.

  The operation unit 3 is a group of operators arranged on the operation panel. The operation unit 3 is connected to the communication bus 21 via the detection I / F 14. The operation of the operation unit 3 by the user is detected by the detection I / F 14, and a detection signal is supplied to the CPU 10 via the bus 21.

  The user can adjust the parameter corresponding to the operation according to the touch operation on the touch panel display 2 and the operation of the operation unit 3. That is, the CUP 10 changes the current data of the parameter corresponding to the operation stored in the current memory of the RAM 12 to a value corresponding to the operation, and sends the changed value to the DSP unit 16, the EFX 17, or the display 2. reflect.

  The communication input / output unit 4 (communication I / O) is connected to the communication bus 21 via the communication I / F 15. The communication I / O 4 is a general-purpose interface for connecting to other peripheral devices such as a USB (Universal Serial Bus) terminal. The user can connect a peripheral device (for example, a computer that remotely controls the mixer 1) to the mixer 1 via the communication I / O 4.

  The AD converter 18, the DA converter 19, and the DD converter 20 are interfaces for inputting and outputting audio signals. The AD conversion unit 18 includes a plurality of input ports for inputting an analog audio signal from an external device, and an AD conversion circuit that converts the input analog audio signal into a digital audio signal and outputs the digital audio signal to the audio bus 22. The DA conversion unit 19 includes a DA conversion circuit that converts a digital audio signal supplied from the audio bus 22 into an analog audio signal, and a plurality of output ports for outputting the analog analog audio signal that has been DA converted to an external device. Including. The DD conversion unit 20 includes a plurality of input / output ports that input and output digital audio signals between the external device and the mixer 1, and a DD conversion circuit that performs digital conversion (format conversion) on the digital audio signals. The mixer 1 can transmit and receive audio signals for a plurality of channels to and from external devices connected via the AD converter 18, DA converter 19, and DD converter 20 ports.

Each of the DSP unit 16 and the EFX 17 may be configured by one DSP (Digital Signal Processor), or may be configured by a plurality of DSPs interconnected by a bus, and the signal processing may be distributed by the plurality of DSPs. Also good.
The DSP unit 16 executes various microprograms based on instructions from the CPU 10 to perform digital signal processing on one or a plurality of channels of audio signals supplied from the audio bus 22 and to process one or more channels after the processing. The audio signal is output to the audio bus 22. Digital signal processing executed by the DSP unit 16 includes audio signal routing, sound characteristic (volume level and sound quality) adjustment processing, mixing processing for mixing audio signals of a plurality of channels, and the like. Further, the EFX 17 executes various microprograms based on instructions from the CPU 10 to perform effect processing such as delay and reverb on the audio signal supplied from the audio bus 22, and the processed audio signal. Is output to the audio bus 22.

  FIG. 2 is a block diagram for explaining the outline of the signal processing configuration (mixing algorithm) executed by the DSP unit 16 and the EFX 17. Based on the input patch setting by the user, the input patch 23 is provided with a plurality of input ports provided in the AD conversion unit 18 and the DD conversion unit 19, respectively, as input channels 24 (In.1, In.2) to be supplied. , In.3,... In.N (N is an arbitrary integer)). The CPU 10 controls communication of audio signals between the AD conversion unit 18 and the DD conversion unit 19 and the DSP unit 16 based on the input patch setting (current data) by the user, and supplies the input source (input port) by the input patch 23. ) And the supply destination (input ch) are logically connected. In the present specification, the term “patch” refers to allocating and connecting a supply destination to an audio signal supply source.

  Each of the N input channels 24 has functional elements related to various audio signal processing such as attenuator, equalizer, compressor, fader, pan, output on / off of each MIX bus, or send level to each bus. The input audio signal is subjected to various signal processing based on the current data, and the signal-processed audio signal is output to one or a plurality of MIX buses 25. Also, CUE on / off can be set for each input channel 24, and the output signal of the channel that is CUE-on can be supplied to the CUE bus 26.

  Each of M (M is an arbitrary integer) MIX buses 25 mixes one or a plurality of channels of audio signals supplied from one or a plurality of input channels 24, and outputs the mixed audio signals to corresponding output channels 27. Output to. Each of the M output channels 27 has functional elements related to various audio signal processes such as a limiter, a compressor, an equalizer, and a fader, and performs various signal processes on the audio signal supplied from the corresponding MIX bus 25. , Output to the output patch 29. The output signal of the CUE bus 26 is output to the output patch 29 as a Cue / monitor signal through level control by the Cue / monitor signal control unit 28 and the like.

  The output patch 29 connects the outputs of the output channels 27 and the Cue / monitor signal control unit 28 to one of a plurality of output ports provided in the DA conversion unit 19 and the DD conversion unit 20, respectively. The CPU 10 controls communication of audio signals between the DA conversion unit 19 and the DD conversion unit 20 and the DSP unit 16 on the basis of the output patch setting (current data) by the user, and the supply source (output channel) by the output patch 29 ) And supply destination (output port).

  FIG. 3 shows an example of an editing window for editing a signal processing configuration (mixing algorithm) executed by the DSP unit 16 and the EFX 17. The CPU 10 displays an editing window illustrated in FIG. 3 on the display device 2 in accordance with a user instruction. The contents to be edited in the editing window are specific contents of the mixing algorithm shown in FIG. 2, that is, arrangement of various functional elements (components) related to signal processing for each channel, audio signal routing, and the like. The user can construct a mixing algorithm by placing a component image indicating a desired component in a desired position in the editing window and arbitrarily connecting the component images. When the CPU 10 instructs the current data to reflect the contents of the editing window, the CPU 10 rewrites the current data based on the editing results in the editing window (arrangement of component images and the state of connection described later) The DSP unit 16 and the EFX 17 are controlled so as to execute signal processing according to the mixing algorithm constructed in the editing window.

In FIG. 3, blocks indicated by reference numerals 30 to 36 are component images indicating functional elements related to various audio signals such as an audio signal input / output module, an equalizer, and a compressor. In the block diagram of FIG. 2, the blocks shown in FIG. 3 showing functional elements such as the input patch 23, the input channel 24, and the output channel 27 are arranged side by side in the horizontal direction in the drawing according to the audio signal transmission direction. In the window, the component images 30 to 36 are arranged side by side in the horizontal direction of the drawing in accordance with the audio signal transmission direction.
In FIG. 3, as an example, in order from the left side of the editing window, a component image 30 indicating an audio signal input unit (Slot Input), a component image 31 indicating a stereo input / output configuration graphic equalizer (GEQ), and a stereo input / output configuration Component images 32 to 35 showing the four delays (Delay # 1 to Delay # 4) and a component image 36 showing the output part (Slot Output) of the audio signal are arranged.
The user can place an image of a component selected from a list (not shown) at a desired position on the editing window or move a component image placed on the editing window by a touch operation on the editing window.

  Each of the component images 30 to 36 has a connection point (terminal portion) for connecting a line segment to be described later. Specifically, an input terminal portion is provided on the left side of each component image 30 to 36 as a connection point indicating input of an audio signal to the component, and the right side indicates output of the audio signal from the component. An output terminal portion is provided as a connection point. In FIG. 3, for convenience of explanation, reference numeral 37 is given only to the output terminal part of the component image 31, and reference numeral 38 is given only to the input terminal part of the component image 32.

In the editing window, as a path for logically connecting an arbitrary supply source and an arbitrary supply destination among a plurality of component images 30 to 36, connection points respectively included in two component images to be connected (specifically, the supply source The first line segment connecting the output terminal part of the component image to be input and the input terminal part of the component image to be supplied) is displayed. In the editing window, the user touches a desired output terminal part (source) and another input terminal part (source) that is the end point, thereby connecting the connection points of any two component images on a one-to-one basis. A first line segment to be connected can be drawn.
For example, in FIG. 3, a line segment 39 indicates a transmission path for supplying the output signal of GEQ # 1 to Delay # 1. Since the line segment 39 connects two terminal portions at substantially the same height, the line segment 39 is a line segment extending substantially horizontally in the left-right direction. On the other hand, since the line segments 40 to 42 connect the two terminal portions at different heights, they are diagonal to the horizontal direction. Further, a line segment connecting two terminal portions at different heights, such as a line segment 43, can be displayed as a broken line. The “height” in the editing window is the vertical position of the editing window.

In the editing window shown in FIG. 3, a path for transmitting an output signal of one supply source to a plurality of supply destinations is expressed using a plurality of first line segments. For example, four line segments 39 to 42 connecting the component image 31 (GEQ # 1) and the component images 32 to 35 (Delay # 1 to # 4) respectively have four delays (Delay # 1 to Delay # 1 to GEQ # 1). A path for supplying a signal to each of # 4) is shown.
As described above, when a path for transmitting the output signal of one supply source to a plurality of supply destinations is represented, in the editing window according to the present invention, the output signal of one supply source is sent to any of a plurality of supply destinations. A common route “bus line segment” can also be used.

FIG. 4 is a diagram for explaining a state where a “bus line segment” is drawn in the edit window, and branches from a line segment 39 connecting the output terminal portion 37 of the GEQ image 31 and the input terminal portion 38 of the Delay # 1 image 32. The bus line segment 50 is shown. The user designates an arbitrary point on the line segment 39 as a start point by the first touch operation, and designates a desired end point by the second touch operation while maintaining the first touch operation. 39) can be created.
As described above, in the editing window, the component images 30 to 36 are arranged side by side in the left-right direction according to the transmission direction of the audio signal, and the output terminal unit 37 is arranged on the right side of each component image 30 to 36. Further, since the input terminal portion 38 is arranged on the left side, the line segment 39 connecting the component images 30 to 36 extends in the left-right direction (lateral direction). On the other hand, the bus line segment 50 is drawn as a vertical line extending in a substantially vertical direction with respect to the horizontal line segment 39, that is, the vertical direction (vertical direction) of the editing window. As shown in the block diagram of FIG. 2, generally, in the block diagram of the mixing algorithm, the bus lines (MIX bus 25 and CUE bus 26) are drawn with vertical lines, and the bus line segment 50 is expressed with vertical lines. By drawing, even in the editing window, it is possible to display in accordance with a block diagram showing such a general mixing algorithm.

FIG. 5 is a flowchart for explaining processing executed by the CPU 10 to create / draw a bus line segment. When the CPU 10 detects a new touch operation, the CPU 10 activates the process of FIG. In step S1, the CPU 10 checks whether or not the “start point of the bus line segment” has already been set. If the start point is not set (NO in step S1), the CPU 10 checks in step S2 whether the point touched this time is on the first line segment, and if it is on the first line segment (YES in step S2). In step S3, the position of the touch operation detected this time is set as the starting point. The setting of the start point is maintained while the touch operation is continued, and is canceled when the touch operation is released.
When the touch operation detected this time is not on the line segment (NO in step S2), the CPU 10 performs necessary processing according to the point of the touch operation detected this time (step S4).

When a touch operation is detected, if a start point is already set (YES in step S1), that is, a new touch operation is performed during the continuation of the first touch operation in which the start point is set in steps S2 and S3. In step S5, the CPU 10 sets the position of the touch operation detected this time as a temporary end point.
In step S6, the CPU 10 corrects the set temporary end point, and in step S7, determines the corrected temporary end point as the end point. The temporary end point is corrected such that the bus line segment connecting the start point to the corrected end point extends vertically in the vertical direction with respect to the line segment including the start point. For example, assuming that the horizontal direction is the x axis and the vertical direction is the y axis in the editing window, the CPU 10 corrects the x coordinate of the temporary end point to the same value as the x coordinate of the start point. In this case, the corrected end point is the same x coordinate as the start point, and is the y coordinate position designated by the second touch operation.

  In step S8, the CPU 10 creates a bus line segment connecting the start point and the end point. That is, the CPU 10 draws the bus line segment 50 (see FIG. 4) in the editing window of the display device 2 and generates audio signal routing data corresponding to the bus line segment 50. The audio signal routing data is data for setting a path indicated by the line segment to the DSP unit 16. In the following, “creation” such as a line segment includes drawing on the display device 2 and generation of corresponding data.

  In step S9, the CPU 10 checks whether there is a line segment that obliquely intersects the drawn bus line segment. If there is a line segment that diagonally intersects the bus line segment (YES in step S9), in step S10, the CPU 10 performs a process of redrawing the line segment that intersects diagonally. If there is no line segment that obliquely intersects the bus line segment (NO in step S8), the CPU 10 ends the process. The “redrawing of the line segment that obliquely intersects with the bus line segment” will be described later.

  According to the bus line segment creation process in FIG. 5 described above, the user sets the start point by touching the first line segment connecting the two terminals by the first touch operation, and the start point is set (the first In a state where one touch operation is continued), by touching an arbitrary point on the editing window by the second touch operation, a bus line segment having an arbitrary length connecting the end point based on the second touch operation from the start point can be obtained. Can draw. For example, when the bus line segment 50 shown in FIG. 4 is created, the line segment 39 is touched by the first touch operation, and the lower touch of the component image 35 is performed by the second touch operation while the touch operation is continued. It is only necessary to touch an arbitrary point having a height corresponding to the y coordinate of the input terminal portion.

Next, the drawing of the second line segment (perpendicular line) connecting the bus line segment 50 and the connection point of the desired component image will be described.
FIG. 6 shows a second line segment (perpendicular line) extending from the bus line segment 50 of FIG. 5 to any of a plurality of supply destinations (Delay # 2 image 33, Delay # 3 image 34, and Delay # 4 image 35) in the editing window. ) It is a figure explaining a mode that 51-53 are drawn. The user designates the bus line segment 50 as the target bus by the first touch operation, and touches the input terminal portion of the desired component image by the second touch operation, so that the bus line segment 50 from the touched input terminal portion. Second line segments (perpendicular lines) 51 to 53 can be created.

FIG. 7 is a flowchart of a process of creating second line segments (perpendicular lines) 51 to 53 that connect the bus line segments and the input terminal portions.
When a touch operation on the editing window is newly detected, the CPU 10 activates the process of FIG. In step S11, the CPU 10 checks whether or not the “target bus” has already been set. If the target bus has not yet been set (NO in step S11), the CPU 10 checks in step S12 whether the point touched this time is on the bus line segment, and if it is on the bus line segment (YES in step S12). In step S13, the bus line segment touched this time is set as a new target bus. That is, when the user touches a bus line segment by the first touch operation (in a state where there is no other touch operation), the user can set the bus line segment as a target bus. The target bus setting is maintained while the touch operation is continued, and is canceled when the touch operation is released. On the other hand, when the point of the first touch operation is not on the bus line segment (NO in step S12), the CPU 10 performs necessary processing according to the touched point (step S14).

If the target bus has already been set when the touch operation is detected (YES in step S11), the CPU 10 determines in step S15 whether the touched point is on the terminal portion (connection point) of the component image. If the touched point is on the terminal portion (YES in step S15), a second line segment (perpendicular line) extending substantially perpendicularly from the touched terminal portion to the target bus is created in step S16. When the point touched by the second touch operation is not on the terminal portion (NO in step S15), the CPU 10 performs necessary processing according to the touched point (step S17).
That is, the user simply and intuitively performs a second touch operation on an arbitrary terminal unit in a state where the target bus is set (a state in which the first touch operation for setting the target bus is continued). Thus, a perpendicular line from the target bus to the touched terminal can be drawn in the edit window. For example, when creating the vertical lines 51 to 53 shown in FIG. 6, the component image 33 is set by the second touch operation in the state where the bus line segment 50 target bus is set by the first touch operation and the touch operation is continued. , 34 and 35 need only be touched in succession.

  As shown in FIG. 6, the output signal of one supply source (GEQ # 1) is transmitted to a plurality of supply destinations (Delay # 1 to # 4) using the bus line segment 50 and the vertical lines 51, 52 and 53. By drawing the route, it is more beautiful than the case of using a plurality of first line segments that connect one-to-one between the terminal portions of the two component images as shown in FIG. It is possible to express a simple and easy-to-understand audio signal path.

In the description using the editing window of FIGS. 4 and 6, there is no oblique first line segment 40 to 42 connecting the output terminal portion of the component image 31 and the input terminal portions of the component images 33 to 35 in FIG. The drawing of the bus line segment 50 and the perpendicular lines 51 to 53 with respect to the bus line segment 50 has been described.
When the bus line segment 50 starting from the first line segment 39 is drawn while the line segments 40 to 42 of FIG. 3 are already drawn, as shown in FIG. Cross diagonally with bus line 50. Thus, when there is a first line segment that obliquely intersects with the bus line segment when the bus line segment is created (YES in step S9 in FIG. 5), “bus” is performed in step S10 in FIG. Redrawing of a line segment that obliquely intersects the line segment "is performed. The “redraw” processing replaces the path indicated by “the line segment obliquely intersecting the bus line segment” with the bus line segment and the second line segment (perpendicular line) connecting the bus line segment 50 and the terminal portion. It is processing of.

  FIG. 9 is a flowchart of the redrawing process of the line segment that obliquely intersects the bus line segment in step S10. FIGS. 10A to 10C are diagrams for explaining how to redraw a “line segment that obliquely intersects with a bus line segment”. As illustrated in FIG. 10A, when the bus line segment 50 is created, if there are line segments 40 to 42 that obliquely intersect the bus line segment 50, redraw processing is performed on these line segments 40 to 42. Starts. Note that the target “line segment that crosses diagonally” is basically the first line segment that connects the connection points of the two component images, and does not include the second line segment (perpendicular to the bus line segment).

  In step S18, the CPU 10 confirms unprocessed line segments that intersect diagonally, sets the unprocessed line segments one by one, and performs the processes in step S19 and subsequent steps. In step S19, the CPU 10 acquires the coordinates of both ends of the line segment to be processed, and in step S20, draws two perpendicular lines (second line segments) from the acquired coordinates to the bus line segment. In step S21, the line segment to be processed is deleted. For example, when the line segment 40 in FIG. 10B is to be processed, the coordinates of the output terminal portion of the GEQ # 1 image 31 and the coordinates of the input terminal portion of the Delay # 2 image 33 are acquired in step S19. By step S20, two second line segments, that is, a perpendicular line 54 from the output terminal portion of the GEQ # 1 image 31 to the bus line segment 50 and a perpendicular line 51 from the input terminal portion of the Delay # 2 image 33 to the bus line segment 50. Draw.

  In step S22, the CPU 10 sets one unprocessed intersecting line segment as a new processing target, and repeats steps S18 to S22 until there is no unprocessed line segment. In the example of FIG. 10B, the line segment 40 is a perpendicular line from the output terminal portion 37 of the GEQ # 1 image 31 to the bus line segment 50 by performing redrawing processing for each of the three line segments 40 to 42. 54 and the vertical line 51 from the input terminal portion of the Delay # 2 image 33 to the bus line segment 50, and the line segment 41 is a vertical line from the output terminal portion 37 of the GEQ # 1 image 31 to the bus line segment 50. 54 and the vertical line 52 from the input terminal portion of the Delay # 3 image 34 to the bus line segment 50, and the line segment 42 is a perpendicular line from the output terminal portion 37 of the GEQ # 1 image 31 to the bus line segment 50. 54 and the Delay # 4 image 35 are rewritten to a perpendicular line 53 from the input terminal portion to the bus line segment 50. In FIG. 10B, the line segment drawn in step S20 is highlighted with a bold line.

  After redrawing all the line segments that obliquely intersect the bus line segment (YES in step S18), the CPU 10 determines whether or not a plurality of line segments indicating the same signal path are created and drawn. (Step S23), and if there are overlapping or unnecessary line segments (YES in step S23), these unnecessary line segments are appropriately arranged by deleting or the like (step S24). The process is terminated. If there is no overlapping line segment or the like (NO in step S23), the CPU 10 ends the process. In FIG. 10B, as described above, since the perpendicular line 54 from the output terminal portion 37 of the GEQ # 1 image 31 to the bus line segment 50 is drawn in an overlapping manner, these overlapping perpendicular lines 54 are deleted (FIG. 10). 10 (c)).

  In the above description, it has been described that the redrawing process is performed when there is a “line segment that obliquely intersects with the bus line segment”, but “the line segment that obliquely intersects with the bus line segment” This is an existing first line segment that can be replaced with a perpendicular line from the bus line segment to the terminal portion. Therefore, as another configuration of step S9 in FIG. 5, it is determined whether there is another first line segment connected to the same terminal portion (connection point) as the first line segment including the start point of the created bus line segment. If there is another first line segment as a result of the examination, the processing of FIG. 8 may be started and the redrawing process may be performed for the other line segment.

  In the bus line segment creation processing of FIG. 5 described above, the configuration in which the start point is designated by the first touch operation and the end point is designated by the second touch operation (configuration in which the bus line segment is created by two touch operations) has been described. . FIG. 11 is a diagram illustrating another configuration example of the bus line segment creation process, in which a bus line segment is automatically created only by a single touch operation. FIG. 12 is a flowchart of processing for automatically creating a bus line segment with only one touch operation. When the CPU 10 detects a new touch operation, the CPU 10 activates the process of FIG.

In step S25, the CPU 10 checks whether the point touched this time is on the first line segment. If the point touched this time is on the first line segment (YES in step S25), the touched point is detected in step S26. A point is set as the start point, and a bus line segment that branches from the first line segment including the set start point is created.
For example, when the user performs a touch operation on an arbitrary point on the first line segment 39 connecting the output terminal portion 37 of the component image 31 and the input terminal portion 38 of the component image 32 in the editing window of FIG. On the other hand, the bus line segment 55 extending vertically in the vertical direction is automatically drawn.
The length of the bus line segment 55 that is automatically drawn is a length that can cover the vertical width (height) of all component images arranged in the editing window. In the example of FIG. 11, the length that can cover four component images 32 to 35 (Delay # 1, # 2, # 3, and # 4) arranged in the vertical direction, that is, out of all component images on the editing window. The position corresponding to the upper terminal portion of the component image 32 arranged in the uppermost row is the upper end, and the position corresponding to the lower terminal portion of the component image 35 arranged in the lowermost row among the same component images. A bus line segment 55 is drawn at the length of the lower end.

  In step S27, the CPU 10 sets the created bus line segment as a target bus and ends the process. The setting of the target bus is maintained while the touch operation is continued, and is canceled when the touch operation is released.

On the other hand, when the touch operation detected this time is not on the first line segment (NO in step S25), in step S28, the CPU 10 moves on the first line segment currently being continued, apart from the touch operation detected this time. Find out if there is a touch.
If there is a touch on the first line segment that is currently continued (YES in step S28), the CPU 10 determines whether the touch detected this time in step S29 is for the terminal portion (connection point) of the component image. If it is a touch on the terminal portion (YES in step S29), a perpendicular line is created from the terminal portion touched this time to the currently set target bus.
That is, the user can automatically draw the bus line segment 55 just by touching the first line segment by the first touch operation, and can continue to the terminal portion of an arbitrary component image while continuing the touch operation. On the other hand, a perpendicular line (second line segment) 56 from the touched terminal portion to the bus line segment 55 can be drawn only by performing the second touch operation (see FIG. 11). If the first touch operation is continued, a vertical line 56 from the terminal part touched continuously to the bus line segment 55 is created every time a touch operation to the terminal part of any component image is performed. it can.

  Note that there is no touch on the first line segment that is currently ongoing separately from the touch operation detected this time (NO in step S28), or the touch operation detected this time is not for the terminal portion of the component image In the case (step S29), the CPU 10 performs a necessary process according to the touched point (steps S31 and S32).

In step S26, an example is described in which the length of the bus line segment 55 that is automatically drawn is “a length that can cover the vertical width (height) of all component images arranged in the editing window”. did. As another example, when the first line segment 39 is touched by the first touch operation, a bus line segment 57 longer than the vertical width (height) of all component images arranged in the editing window is drawn. May be. That is, as shown in FIG. 13, the length of the bus line segment 57 is longer than the vertical width (height) of all the component images arranged in the editing window. Specifically, among all the component images on the editing window, there is some “margin” above the position corresponding to the upper terminal of the component image 32 arranged at the uppermost level. This is a length with some “margin” below the position corresponding to the lower terminal of the component image 35 arranged at the bottom of the component images.
In general, when a bus line is drawn in a block diagram showing a mixing algorithm, the length of the bus line is the same as that of the MIX bus 25 and the CUE bus 26 in FIG. It is drawn longer (with a margin) than the vertical width of the entire block shown (see FIG. 2). As shown in FIG. 13, by providing margins above and below the bus line segment 57, it is possible to perform display in accordance with a block diagram showing such a general mixing algorithm.

  In the above-described embodiment, the configuration in which the detected touch operation point (touched coordinate position) is set as the start point of the bus line (step S3 or step S26) has been described. However, as another example, the touch operation is performed. An arbitrary point (for example, the midpoint of the touched first line segment) may be used as the start point of the bus line segment.

  In the above embodiment, the configuration in which the editing apparatus according to the present invention is applied to a digital audio mixer on which the touch panel display 2 of the multi-touch input method is mounted has been described. For example, the console includes a touch panel display 2 and a digital mixer engine (an apparatus having an audio signal input / output function and a signal processing function (the DSP unit 16 and EFX 17 in FIG. 1)). The editing apparatus according to the present invention may be applied to a console in a mixing system, or the editing apparatus according to the present invention is applied to a tablet computer (including a touch panel display 2) that remotely controls the digital audio mixer of FIG. Alternatively, the present invention may be applied to a tablet computer (having a touch panel display 2) for remotely controlling a mixing system system including a console and a digital mixer engine, or the digital mixer engine and the engine may be used. Tablet control remotely It may be applied editing apparatus according to the present invention in a tablet computer in a mixing system consisting of computer.

DESCRIPTION OF SYMBOLS 1 Digital audio mixer, 2 Touch panel type display device, 3 Operation part, 4 Communication input / output part, 10 CPU, 11 Flash memory, 12 RAM, 13, Display interface, 14 Operation detection interface 14, 15 Communication interface, 16 Signal processing part , 17 Effect processing unit, 18 Analog / digital conversion unit, 19 Digital / analog conversion unit, 20 Digital / digital conversion unit, 21 Communication bus, 22 Audio bus, 22 Input patch unit, 23 Input channel unit, 24 MIX bus, 25 CUE bus 26 output channel section 27 CUE / monitor output control section 28 output patch section 30-36 component image 37 output terminal section 38 input terminal section 39-43 first line segment 50, 55, 57 bus line Min, 51-54,56 second line

Claims (2)

An editing device that edits a configuration of an audio signal processing executed by a signal processing unit based on a touch operation on a touch panel type display capable of identifying multipoint contact, wherein the audio signal processing is performed on the display. A plurality of component images corresponding to the functional elements to be configured, and a first line segment indicating a path logically connecting an arbitrary supply source and an arbitrary supply destination among the plurality of component images are displayed. In the editing device,
When a touch operation on the first line segment being displayed on the display is detected while no touch operation is performed on the display, a start point is set on the touched first line segment. Starting point setting means;
An end point setting means for setting an end point based on the new touch operation when a new touch operation is detected in a state where the touch operation on the first line segment is continued;
A bus line segment drawing that draws a bus line segment branched from the first line segment on the display unit as a common path for transmitting the audio signal of the first line set with the start point to any of a plurality of supply destinations. Means,
Target bus setting means for setting the bus line segment as a target bus when a touch operation on the bus line segment is detected;
When a new touch operation on the connection point of the component image is detected, the bus line segment is used as a path for transmitting the audio signal of the bus line set to the target bus to the touch-operated component image. An editing apparatus comprising: a second line segment drawing means for drawing a second line segment extending to a connection point of a component image on the display.   When the first line segment intersects the bus line segment drawn by the bus line segment drawing means, the path indicated by the intersecting first line segment is connected to the connection point of the component image from the bus line segment and the bus line segment. Redrawing means for redrawing as a path indicated by the second line segment extending to, wherein a connection point of two component images which are both ends of the intersecting first line segment is specified, and the specified from the bus line segment The apparatus further comprises redrawing means for drawing the two second line segments extending to the connection points of the component images on the display and erasing the intersecting first line segments. Item 2. The editing device according to Item 1.

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